Home / 257,877.20-387,252-168,072.44

Finding the Fourth Proportional to 257,877.20, 387,252 and 168,072.44

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Solution

The fourth proportional to 257,877.20, 387,252 and 168,072.44 is: 252,392.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,877.20 : 387,252 = 168,072.44 : x
  2. Step 2: Convert to fraction form
    257,877.20/387,252 = 168,072.44/x
  3. Step 3: Cross multiply
    257,877.20x = 387,252 × 168,072.44
  4. Step 4: Simplify right side
    257,877.20x = 65,086,388,534.88
  5. Step 5: Solve for x
    x = 65,086,388,534.88/257,877.20
  6. Step 6: Final answer
    x = 252,392.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.